This wireless bluetooth adapter has an automatic memory function. The built-in smart Bluetooth 5.0 of this USB bluetooth 5.0 adapter is more stable, and the built-in antenna design can achieve long-distance transmission of 0-10 meters. This wireless bluetooth adapter is small and compact, light weight, easy to carry out. Feature: ¡¾AUTOMATIC MEMORY FUNCTION¡¿This wireless bluetooth adapter has an automatic memory function. After the first pairing is successful, automatically connect and pair later. ¡¾BUILT-IN ANTENNA¡¿The built-in smart Bluetooth 5.0 of this USB bluetooth 5.0 adapter is more stable, and the built-in antenna design can achieve long-distance transmission of 0-10 meters. Specification: Condition: 100% Brand New Item Type: USB Bluetooth Adapter Bluetooth Version£º5.0 Material: ABS Color: Black Transmission Power£º2.4£¨Mbps£ Transmission Distance: Maximum Support 10M Quantity: 4PCS Bluetooth 5.0 Audio Transmitter Mainly Used for Windows System Desktop Computers/Laptops, Supporting Part for Android Intelligent TV Audio Transmission, Audio Connection with Bluetooth Headset, Bluetooth Sound No Support for Connecting to Devices Such As Smartphones/Bluetooth Keyboards Mouse. No Support for IOS System Weight: Approx. 45g Package List: 4 x USB Bluetooth Adapter